13:24 Monday 08 January 2018 JST
My Android phone is not plugged in, but when I took it out of my pocket, I found it “Installing system update” with an eye-candy white circle to distract me from the fact that it’s doing the update while on battery, without my having asked for the update.
It’s rebooting now, so seems the update completed. I hope!
Now it says “Android is upgrading” with a subtitle “Optimizing app 28 of 271”
188 of 271
Update and reboot complete